I went in without any expectations. Just, maybe, nostalgic for some George Michael. I did not read any reviews because almost all the movies nowadays that seem to be 'worthed watching' appear to 'formulaically' involved killing, maiming, annihilating... So I don't trust seemingly intelligent reviewers' souls. And what a good move that was!
Certainly Last Christmas is not your ordinary rom-com. That is a blessing. Watch the movie without being smart and analytic. Just let its commentary and essence wash over you. Went out of the cineplex ... singing.